April 1 is a day on which, in some countries, people try to play tricks on others. If one succeeds (成功) in tricking somebody, one laughs and says, “April Fool”. And then the person who has been tricked usually laughs, too.

　　One April 1, a country bus was going along a winding(弯曲的) road when it slowed down and stopped. The driver anxiously turned switches(开关) and pressed buttons, but nothing happened. Then he turned to the passengers with a worried look on his face and said, “This poor bus is getting old. It isn't going as well as it used to. There's only one thing to do if we want to get home today. I shall count three, and on the word ‘three’, I want you all to lean(倾斜) forward suddenly as hard as you can. That should get the bus started again. But if it doesn't, I am afraid there is nothing else I can do. Now, all of you lean back as far as you can in your seats and get ready. ”

　　The passengers all obediently (顺从地) pressed back against their seats and waited anxiously.

　　Then the driver turned to the bus front and asked, “Are you ready?”

　　The passengers hardly had enough breath to answer, “Yes”.

　　“One! Two! Three! ” counted the driver. The passengers all swung forward suddenly on the word “three”, and the bus started up at a great rate.

　　The passengers breathed more easily and began to smile with relief (宽慰). But their smiles turned to a surprised and then a delighted laughter when the driver merrily cried, “April Fools! ”

1．On April Fools' Day people can ________ .

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2．On April 1 if one succeeds in tricking somebody, the person who has been tricked ________ .

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3．The country bus stopped just because ________ .

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A．the petrol (汽油) had run out

B．there was really something wrong with it

C．the bus driver wanted to play a trick on the passengers

D．the bus was too old

4．All the passengers tried their best to help the bus driver start the bus because ________ .

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A．they didn't realize that the bus driver wanted to fool them

B．they are eager to get home

C．both A and B

D．the bus driver was really in great trouble

5．This is a story about ________ .

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A．what happened on an April Fools' Day

B．the trouble of a bus

C．the trouble of a driver